Budiarso EP, Widagdo S. The Effect Of The Implementation Of Standard Operating Procedure, Reward System, Training And The Work Environment On Work Productivity In PT. BPR WILIS Jember. abm [Internet]. 2020Dec.6 [cited 2025Apr.21];2(1):69-6. Available from: https://jurnal.itsm.ac.id/index.php/abm/article/view/391